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LIQUID LIMIT DEVICE WITH COUNTER AZA0853
The AZA0853 Liquid Limit Device with Counter from AZALAB is a precision-engineered instrument used for determining the liquid limit of soils in accordance with the Casagrande method. This test is a fundamental component of soil classification and geotechnical investigation, providing critical insight into the plasticity, compressibility, and shear strength of fine-grained soils.
Designed for reliable, repeatable, and standardized testing, the AZA0853 is widely used in geotechnical laboratories, civil engineering departments, construction quality control labs, and academic institutions.
Principle of Liquid Limit Test (Casagrande Method)
The liquid limit is defined as the water content at which soil transitions from a plastic state to a liquid state. In practice, it is determined as the moisture content at which a standard groove cut in the soil sample closes over a length of 12.5 mm under 25 blows of the liquid limit apparatus.
The AZA0853 consists of a polished brass cup mounted on an adjustable bracket. The cup is repeatedly raised and dropped from a fixed height of 1 cm onto a hard rubber base by means of a manually operated cam mechanism. A built-in mechanical counter accurately records the number of blows, ensuring compliance with testing standards and reducing operator error.
Description
Key Features and Advantages
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Integrated Mechanical Counter: Accurately records the number of blows (1–999), ensuring consistent results
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Standard Drop Height: Precisely adjustable to 1 cm as per IS and ASTM requirements
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Manual Operation: Smooth crank mechanism; no electrical power required
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Durable Construction: Polished brass cup and hard rubber base for long service life
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High Repeatability: Minimizes user variation and improves test reliability
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Complete Supply: Includes grooving tools and calibration gauge block
Standards Compliance
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ASTM D4318 – Standard Test Methods for Liquid Limit of Soils
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IS 2720 (Part 5) – Determination of Liquid and Plastic Limits
Applications
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Soil classification and Atterberg limits determination
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Foundation and embankment design
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Pavement and subgrade evaluation
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Slope stability and earthwork analysis
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Hydraulic and geotechnical investigations
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Educational and research laboratories
Technical Specifications
| Feature | Specification |
|---|---|
| Model | AZA0853 |
| Test Method | Casagrande Liquid Limit Method |
| Cup Material | Polished Brass |
| Base Material | Hard Rubber |
| Drop Height | 1 cm ± 0.1 cm |
| Operation | Manual crank with cam mechanism |
| Counter Type | Mechanical, resettable (1–999) |
| Weight | Approx. 4.5 – 5 kg |
| Standards | ASTM D4318, IS 2720 (Part 5) |
| Accessories | Casagrande grooving tool, ASTM grooving tool, height gauge block |
| Brand | AZALAB |
Supplied With
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Liquid limit device with mechanical counter
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Brass Casagrande cup assembly
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Hard rubber base
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Casagrande grooving tool
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ASTM grooving tool
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Height gauge block
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Operating instructions (on request)
Frequently Asked Questions (FAQ)
Q1: What is the purpose of the AZA0853 Liquid Limit Device?
It is used to determine the moisture content at which soil changes from a plastic to a liquid state.
Q2: Why is a counter important in liquid limit testing?
The counter ensures accurate recording of blows, typically 25, improving repeatability and compliance with standards.
Q3: Which soils can be tested using this device?
It is suitable for cohesive soils such as clay, silt, and fine-grained soil mixtures.
Q4: Does the apparatus require electricity?
No. It is manually operated and does not require any power supply.
Q5: Is it suitable for educational use?
Yes. Its visible working principle and robust design make it ideal for teaching soil mechanics.
Additional information
| Counter Type |
Mechanical 1–999 resettable |
|---|---|
| Standard Compliance |
ASTM D4318, IS: 2720 (Part 5) |
| Accessories Included |
Grooving Tool, Gauge Block |
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